Výsledky vyhledávání - "HAYASHI, MASAKO"

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Phase Structure of a Four- and Eight-Fermion Interaction Model at Finite Temperature and Chemical Potential in Arbitrary Dimensions

Autor: Hayashi, Masako, Inagaki, Tomohiro, Sakamoto, Wataru

Publikováno v: Int.J.Mod.Phys.A25:4757-4774,2010

The phase structure of a four- and eight-fermion interaction model is investigated at finite temperature and chemical potential in arbitrary space-time dimensions, $2\leq D<4$. The effective potential and the gap equation are calculated in the leadin

Externí odkaz: http://arxiv.org/abs/1007.1497

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Curvature and topological effects on dynamical symmetry breaking in a four- and eight-fermion interaction model

Autor: Hayashi, Masako, Inagaki, Tomohiro

A dynamical mechanism for symmetry breaking is investigated under the circumstances with the finite curvature, finite size and non-trivial topology. A four- and eight-fermion interaction model is considered as a prototype model which induces symmetry

Externí odkaz: http://arxiv.org/abs/1003.3163

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Topological and Curvature Effects in a Multi-fermion Interaction Model

Autor: Inagaki, Tomohiro, Hayashi, Masako

A multi-fermion interaction model is investigated in a compact spacetime with non-trivial topology and in a weakly curved spacetime. Evaluating the effective potential in the leading order of the 1/N expansion, we show the phase boundary for a discre

Externí odkaz: http://arxiv.org/abs/1003.1173

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Multi-fermion interaction models in curved spacetime

Autor: Hayashi, Masako, Inagaki, Tomohiro, Takata, Hiroyuki

A model with a scalar type eight-fermion interaction is investigated in curved spacetime. The ground state of the model can be obtained by observing the effective potential. Applying the Riemann normal coordinate expansion, we calculate an effective

Externí odkaz: http://arxiv.org/abs/0812.0900

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